*{
	margin: 0;
	padding: 0;
	box-sizing: border-box;
}
ol,ul{
	list-style: none;
}
img{
	border: none;
	vertical-align: bottom;
}
a{
	text-decoration: none;
}
html,body{
	width: 100%;
}
body{
    background: #f2f2f2;
}